This is a vintage "Wine Bottle Stopper Set" made by Tablecraft Products Company.
The set is silver-toned and features a stopper with a round-shaped top, a stopper with flared cylinder-shaped top, a stopper with an egg-shaped top, and 2 round rubber rings around the middle.
They measure approximately 3.75" tall and .75" wide at their widest points.
These items are in good preowned condition with some stains on the bottom of the stoppers.